982642649 has 4 divisors (see below), whose sum is σ = 983030400. Its totient is φ = 982254900.

The previous prime is 982642643. The next prime is 982642651. The reversal of 982642649 is 946246289.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 982642649 - 2⁸ = 982642393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 982642597 and 982642606.

It is not an unprimeable number, because it can be changed into a prime (982642643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190049 + ... + 195150.

It is an arithmetic number, because the mean of its divisors is an integer number (245757600).

Almost surely, 2^982642649 is an apocalyptic number.

It is an amenable number.

982642649 is a deficient number, since it is larger than the sum of its proper divisors (387751).

982642649 is a wasteful number, since it uses less digits than its factorization.

982642649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387750.

The product of its digits is 1492992, while the sum is 50.

The square root of 982642649 is about 31347.1314317594. The cubic root of 982642649 is about 994.1804144558.

The spelling of 982642649 in words is "nine hundred eighty-two million, six hundred forty-two thousand, six hundred forty-nine".